correction:

I know that there would only be 16 tiny dots of 3,000 F
that add up to 48,000 F on each sq ft of the 1 sq mile solar heat array but heat is additive and it would take a while for the
heated plate to heat up , but it would heat up rather quickly.

3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.