For a 10 1/2 week pup, waiting from 10:30 pm to 4:30 pm is a very long time for their little bladders. If this was my pup, I would add one more visit outside in there, maybe even 2 more. Once he goes, quietly scratch, good puppy then take him back to the crate. That many may be overkill and a lot of sleep lost for a few days, but in the end I am happier not having to clean up a pee crate at night.
During the day, keep the pup tethered to you. Watch for any hint of wanting to pee, sniffing/circling, scoop him up, take to the spot outside, give the pee command, throw a party when after he goes. Do this even if it is 4 or 5 times an hour. At this age, they are pee machines
Keep in mind after he wakes up from a nap, after a play period and eating, he is going to need to go outside.