Answer
$$
10.4 \mathrm{\ h}
$$
Work Step by Step
The time required is
$$
t=(18700)(2.00 \mathrm{s})\left(\frac{1.00 \mathrm{h}}{3600 \mathrm{s}}\right)=10.4 \mathrm{\ h}
$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.