Hi, can someone help me with this please.

The Union has a new bakery, and its operating hours are from 8 am to 9 pm with a break time between 1 pm a 2 pm. On average, the bakery burns 1/2 a slice of bread per hour. Assuming that the number of burnt slices is distributed as a Poisson Process, What is the probability that at least 2 slices are burned between the time that the break ends and the closing time