Hi Tank Attack,
Hmmmmm, I would imagine that water would evaporate faster in copper trays. Being metal and all, they would conduct heat faster from the environment and heat the water. Maybe. Then again, the faster the evaporation, the faster it will rust!
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All that is gold does not glitter,
Not all those who wander are lost;
The old that is strong does not wither,
Deep roots are not reached by the frost.
-J.R.R. Tolkien, LOTR, Fellowship of the Ring
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