Honestly - NO.
I put in alot of work (and hours) for assignments, and study for exams. That is generally it. Back when I was an internal uni student (with no kids) attending lectures I would have done more work (and gotten better grades mind you) - but even then it wasn't a steady 10hours per week (unless you are talking all the study spread across 5 subjects), but maybe a couple of hours each subject and more for assignments and study.