WIll it take longer (and if so how much longer) to cook 27 pieces of chicken rather than 3?

I’m cooking for my son’s birthday party and I’m doing chicken drumsticks in the oven and it just occurred to me that I’ve never cook more than 3 pieces of chicken in a oven at once before!!

If I normally cook 3 drumsticks for 35 mins on 180 degrees will it take longer and how much longer to cook 27 pieces of chicken all at the same time in the oven?

Thank you! P.S I would ask my mum…but they’re on a cruise…