Can a husband share with his wife in the reward of publishing audio Quranic surahs and beneficial Friday sermons? And how is that done?

It is permissible for a Muslim to include others in the reward of good deeds, by intending it or saying: "O Allah, make the reward of this deed of mine for so-and-so." It is better to ask Allah for the reward first and then dedicate it to whom one wishes, such as saying: "O Allah, reward me with Your mercy for this, and make its reward for so-and-so," and the one who dedicates will receive the reward for the dedication. Although it is permissible to dedicate the reward to a living person or a deceased one, it is better for a person to keep good deeds for themselves and to supplicate frequently for their Muslim brothers and sisters.