Need help with Hamming code question:

An extended ASCII character is represented by an 8-bit quantity. The associated Hamming encoding of each character can then be represented by a string of three hex digits. Encode the following extended five-character ASCII text using an even-parity Hamming code: Earth. Show your answer as a string of hex digits.

Not sure if im starting this off correctly,

Earth = 45 61 72 74 68 (Hex decimal)

= 01000101 01100001 01110010 01110100 01101000 (ASCII Binary)

now im not sure how to do the hamming code for 8-bit parity and showing my answer in a string of hex digits