Is WordPress safe for an E-commerce website?

yes, with the proper security plugin, for me is wordfence

1. you must always follow the security tips
2. do not use the word admin as administrator
3. to try the updates of wp and plygins to a staging site
4. the tables must not syart from wp_ but from somethinh else like wp_99_
5. the paswords better to be phrases
6. to have often backup and to test
7. to use https://
8. to add security rules to .htaccess
9. and more