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.