To know how to Setup Cart page, navigate to this doc – Cart Page Setting.
Go to Appearance > Customize > WooCommerce > Cart Page.
In cart page you’re free to showcase your Cross sell product. You can also set the number of Cross Sell Product to show with columns.
To setup Cross Sell Products. Go to WooCommerce > Products and select the product on which you’d like to show in cross-sell. Scroll down to the Product Data panel. Select the Linked Products tab in the left menu. Add the product you wish to link to by searching for it.
