It will take many thousands of years.
According to the speed indicated by royce, using one of the most powerful graphics cards of the moment:
* if it was only digits, it'd take: 10¹⁰/(10KH/s * 60 * 60 * 24) = 11.57 days
* if it was only hex chars, it'd take: 16¹⁰/(10KH/s * 60 * 60 * 24 * 365) = 3.48 years
* if it was only lowercase letters OR only capital letters, it'd take: 26¹⁰/(10KH/s * 60 * 60 * 24 * 365) = 447.63 years
* if it was digits AND only lowercase letters OR only capital letters, it'd take: 36¹⁰/(10KH/s * 60 *60 *24 * 365) = 11,593.6 years
* if it was lowercase letters AND capital letters, it'd take: 52¹⁰/(10KH/s * 60 *60 *24 * 365) = 458,381.2 years
* if it was digits AND lowercase AND capital letters, it'd take: 62¹⁰/(10KH/s * 60 *60 *24 * 365) = 2,661,400.8 years
* if it was any char, it'd take: 95¹⁰/(10KH/s * 60 *60 *24 * 365) = 189,858,238 years
So you should not waste effort and / or money
According to the speed indicated by royce, using one of the most powerful graphics cards of the moment:
* if it was only digits, it'd take: 10¹⁰/(10KH/s * 60 * 60 * 24) = 11.57 days
* if it was only hex chars, it'd take: 16¹⁰/(10KH/s * 60 * 60 * 24 * 365) = 3.48 years
* if it was only lowercase letters OR only capital letters, it'd take: 26¹⁰/(10KH/s * 60 * 60 * 24 * 365) = 447.63 years
* if it was digits AND only lowercase letters OR only capital letters, it'd take: 36¹⁰/(10KH/s * 60 *60 *24 * 365) = 11,593.6 years
* if it was lowercase letters AND capital letters, it'd take: 52¹⁰/(10KH/s * 60 *60 *24 * 365) = 458,381.2 years
* if it was digits AND lowercase AND capital letters, it'd take: 62¹⁰/(10KH/s * 60 *60 *24 * 365) = 2,661,400.8 years
* if it was any char, it'd take: 95¹⁰/(10KH/s * 60 *60 *24 * 365) = 189,858,238 years
So you should not waste effort and / or money