Hi,
1) yes, follow the standard/usual procedure where you will be changing the site url. refer : http://www.wpbeginner.com/wp-tutorials/how-to-move-wordpress-from-local-server-to-live-site/ or http://www.wpexplorer.com/wordpress-local-to-live/ 2) it may affect slightly. it is always recommended to remove unused pages.
Regards,
