To find the unit rate at which Tonya handed out fliers each hour, you can divide the total number of fliers by the total number of hours.
Given that Tonya handed out 240 fliers over 5 hours, the calculation would be:
\[ \text{Unit rate} = \frac{240 \text{ fliers}}{5 \text{ hours}} = 48 \text{ fliers per hour} \]
Thus, Tonya handed out 48 fliers per hour.