Hard plastic phone case mold case study

I order to create a phone case, a person would need to

  1. design an enclosure that wrap around the 4 edges of a phone.
  2. would need to have the phone case wrap around the edges enough to protect the screen when falling face flat.
  3. ensure the power and volume buttons are part of the aluminum mold to ensure perfect alignment on buttons

Can a person build a 2 piece aluminum mold to manufacture such thing? if so how would you remove the phone case from the mold due to the following:

  1. the plastic wrapped around the mold
  2. the buttons on both sides of a phone

Assuming the phone case is made out of hard plastic!