Jesus is talking to a group of people about what they as individuals should or should not do. All instances of "you" and "your" are singular, but in some langugaes they may need to be plural. (See: [[rc://en/ta/man/translate/figs-you]])
Here "eye" refers to what a person sees. And, "stumble" is a metaphor for "sin." AT: "if what you see causes you to stumble" or "if you want to sin because of what you see" (See: [[rc://en/ta/man/translate/figs-metonymy]] and [[rc://en/ta/man/translate/figs-metaphor]])
This means the most important eye or hand, as opposed to the left eye or hand. You may need to translate "right" as "better" or "stronger." (See: [[rc://en/ta/man/translate/figs-idiom]])
These commands are exaggerations for a person doing whatever he needs to do to stop sinning. (See: [[rc://en/ta/man/translate/figs-hyperbole]])
# pluck it out
"forcefully remove it" or "destroy it." If the right eye is not specifically mentioned, you may need to translate this "destroy your eyes." If eyes have been mentioned, you may need to translate this "destroy them."