The effect of the personification in line 8 It reveals how the sculptor was ridiculing Ozymandias as he made the statue, and that Ozymandius himself caused his own despair (and facial expression that was "mocked").
Personification is a rhetorical strategy where the attributes of a living thing is given to an abstract figure. The personification in line 8 was demonstrated with the words, "hands that mocked them" and "heart that fed."
These two personifications show the author's ridicule of Ozymandias, the authoritative King.
Learn more about Ozymandias here:
https://brainly.com/question/2128126