7 week training schedule for marathon

So I have seven weeks left until I run my first full marathon. Rather than continue with my unstructured training, I'm attempting to use a plan from someone who knows what they are doing. Although I'm not entirely convinced but hey I'll give it a go.

Week 1
Monday: Rest?????
Tuesday: Easy Run - 3 miles at 10 min pace?????
Wednesday: Rest????
Thursday: Tempo run - 5 miles at 8:55 min pace
Friday: Rest
Saturday: Rest
Sunday: Long run - 8 miles at 10:30 min pace

Hmmm does not seem very difficult, but hey its only week one. Lets see how I progress. My goal is to complete marathon in 3 hours 45 min.