If the diameter doubles (x2), the cross-sectional area quadruples (x4).
It quadruples.
baskets are made of metal ring with an inside diameter of eighteen inches.
Approximately 127 cm length of a wire with a diameter of 1mm can be used to make a 1cm cube of metal.
Nothing happens to the metal, there may be sparks from the metal to the housing of the microwave, the microwave may short out.
It forms metal oxide
the metal will become hot
Acid + Metal = Salt + Hydrogen
diameter in mm x diameter in mm x 0.0000063 x Thickness in mm
generally metal oxides are formed.
An ionic compound is formed
Acid + Metal = Salt + Hydrogen
It will keep the metal from rusting.