My method is to first back-up the course with no user data, then restore it. This is what Shirley has said. It typically takes less than 15 minutes. I am not sure what you mean by "put in a copy request." You might need to explain more precisely what you are doing.
Mary's suggestion to do a course reset should also work. I don't do this because I like to preserve student data for every course I offer, even if it is the same.
Mary's suggestion to do a course reset should also work. I don't do this because I like to preserve student data for every course I offer, even if it is the same.