Copered or Coppered: How To spell?
The word Copered is misspelled against Coppered, which is past tense of "Copper"
Coppered has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings co & ered which should not be misspelled with single 'P'
Wrong Spelling:  co-p-ered  Correct Spelling:  co-pp-ered 
Find more incorrect spellings of Coppered to spell right way.