I got a Chihuahua puppy 2 weeks ago. He is now 8 weeks old. Currently I can leave him alone for roughly 2hours and he is fine the whole time. I am at home all day every day at the moment but I'm starting a Course next week 1 day a week for 10weeks. I will have to be away from 9am to 2:30pm

He is already crate trained and has a play pen that I can attach to his crate whilst I'm out in case he wakes up and wants the bathroom or to play. Will I be able to leave my puppy for this long?