The correct answer is: $28800\text{ s}$
Explanation
We convert hours to seconds by using minutes and seconds.
Steps:
- One hour in seconds: $$1\text{ h}=60\text{ min}\times60\text{ s/min}=3600\text{ s}$$
- Multiply by 8 hours: $$8\text{ h}=8\times3600\text{ s}=28800\text{ s}$$
- Final check: $$8\text{ h}=28800\text{ s}$$
Therefore, 8 hours equals $28800\text{ seconds}$.