Can UIStackView also be used within a UITableViewCell?

• You can use, because UIStackView is a subclass of UIView.
• We can create a UIStackView with all its arrangedViews and layout properties, place it as a contentview of UITableViewCell.

Yes its possible.
Take a look at the WWDC15 video. They demonstrate the use of a UIStackView within a UITableViewCell. It's around 5:00

WWDC 15 - Implementing UI Designs in Interface Builder