That question has no answer. I'm not saying this to be an ass, but there is honestly no answer.
For training, sets/reps are constants used to measure progress and control workload. Well, thats what they should be used as, bodybuilding/fitness will have you believe there is a voodoo element.
There is no general rule where X is the number of sets you shouldn't go over or under. Look at weightxrepsxsets as workload and think in those terms. There are routines where squatting 10x10 is very beneficial to reaching a certain goal, there are routines where 10 sets is overkill.